This function limits the spatial and temporal domains of raw data and corrects for erroneous
state variable measurements.
Usage
srvy.process(const.tin = FALSE)
Arguments
const.tin
a logical; if TRUE interpolation is used to construct a surface map of the state variable.
Value
A data frame data.mod and list data.tin are stored within srvy.dat.
Details
Erroneous state variable measurements are identified by calculating the change in z over
the change in time for sequential data records. Those gradients exceeding a user defined tolerance,
grad.tol (see srvy.dat), are identified as erroneous measurements. After excluding these measurements
the process is repeated until all gradients are less than the user specified tolerance. An exception to the tolerance
constraint is made for sequential records whose time difference is greater than
a specified time gap, time.gap (see srvy.dat).